Find the liquid in which the cast iron weight will float at room temperature. Will a crown of pure gold float in the same liquid?

A cast iron weight will float in mercury because its density is less than that of mercury. A crown of pure gold will not float in mercury because the density of gold is greater than that of mercury.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.